@media screen, projection
{
  #main { width: 100%; float:left; }

  #col1 { width: 50%; float:left; margin-left: 25%; }
  #col1_content { padding-left: 10px; padding-right: 10px }

  #col2 { width: 25%; float:left;  margin-left: -75%;}
  #col2_content { padding-left: 20px; padding-right: 10px }

  #col3 {  float:right; width: 25%; margin-left: -5px; margin-right: 0%; }
  #col3_content { padding-left: 10px; padding-right: 20px }
}
